ci: Add releases for x86_64 macOS

Author: varungandhi-src

.github/workflows/release.yml

@@ -19,9 +19,9 @@ jobs:
     name: 'Build and upload artifacts'
     strategy:
       matrix:
-        # TODO: Add macos-12 once 
-        # https://github.com/github/roadmap/issues/528 is fixed
-        platform: ['ubuntu-20.04', 'windows-2022']
+        # NOTE: GitHub-hosted runners for macOS are x86_64 only
+        # https://github.com/github/roadmap/issues/528
+        platform: ['ubuntu-20.04', 'macos-12', 'windows-2022']
         config: ['dev', 'release']
     runs-on: ${{ matrix.platform }}
     env:

WORKSPACE

@@ -9,12 +9,9 @@ load("@com_grail_bazel_toolchain//toolchain:deps.bzl", "bazel_toolchain_dependen
 
 bazel_toolchain_dependencies()
 
-load("@com_grail_bazel_toolchain//toolchain:rules.bzl", "llvm_toolchain")
+load("//:setup_llvm.bzl", "setup_llvm_toolchain")
 
-llvm_toolchain(
-    name = "llvm_toolchain",
-    llvm_version = "15.0.6",
-)
+setup_llvm_toolchain(name = "llvm_toolchain")
 
 load("@llvm_toolchain//:toolchains.bzl", "llvm_register_toolchains")
 load("@rules_python//python:repositories.bzl", "py_repositories", "python_register_toolchains")

setup_llvm.bzl

@@ -0,0 +1,28 @@
+load("@com_grail_bazel_toolchain//toolchain:rules.bzl", grailbio_llvm_toolchain = "llvm_toolchain")
+
+def setup_llvm_toolchain(name):
+    mapping = {
+        "linux-aarch64": {"version": "15.0.6", "triple": "aarch64-linux-gnu", "sha256": "8ca4d68cf103da8331ca3f35fe23d940c1b78fb7f0d4763c1c059e352f5d1bec"},
+        "linux-x86_64": {"version": "15.0.6", "triple": "x86_64-linux-gnu-ubuntu-18.04", "sha256": "38bc7f5563642e73e69ac5626724e206d6d539fbef653541b34cae0ba9c3f036"},
+        "darwin-arm64": {"version": "15.0.6", "triple": "arm64-apple-darwin21.0", "sha256": "32bc7b8eee3d98f72dd4e5651e6da990274ee2d28c5c19a7d8237eb817ce8d91"},
+        "darwin-x86_64": {"version": "15.0.7", "triple": "x86_64-apple-darwin21.0", "sha256": "d16b6d536364c5bec6583d12dd7e6cf841b9f508c4430d9ee886726bd9983f1c"},
+        "windows": {"version": "15.0.6", "sha256": "22e2f2c38be4c44db7a1e9da5e67de2a453c5b4be9cf91e139592a63877ac0a2", "url": "https://github.com/llvm/llvm-project/releases/download/llvmorg-15.0.6/LLVM-15.0.6-win64.exe"},
+    }
+    llvm_versions, sha256, strip_prefix, urls = {}, {}, {}, {}
+    for (k, v) in mapping.items():
+        llvm_versions[k] = v["version"]
+        sha256[k] = v["sha256"]
+        if "url" in v:
+            urls[k] = [v["url"]]
+        else:
+            prefix = "clang+llvm-{version}-{triple}".format(version = v["version"], triple = v["triple"])
+            strip_prefix[k] = prefix
+            urls[k] = ["https://github.com/llvm/llvm-project/releases/download/llvmorg-{version}/{prefix}.tar.xz".format(version = v["version"], prefix = prefix)]
+
+    grailbio_llvm_toolchain(
+        name = name,
+        llvm_versions = llvm_versions,
+        strip_prefix = strip_prefix,
+        urls = urls,
+        sha256 = sha256,
+    )